Hitachi 4FSVN1Q Installation & Maintenance Manual page 28

5
6
G
Install main switch and ELB for each system separately. Select the high response type ELB that is acted within
0.1 second.
G
Separate the control wiring between outdoor unit and indoor unit more than approximately 5 to 6cm from power
supply wiring. Do not use a coaxial cable.
RAS-4FSVN1Q
RAS-5FSVN1Q
RAS-6FSVN1Q
RAS-5FSYN1Q
RAS-6FSYN1Q
Power supply line
Earth line
Communication line(5V)
1N~ Outdoor Unit Connect Wire
Keep a distance between
each wiring terminal and
attach insulation tape or
sleeve as shown in the figure.
Correct
Insulation Tape or Sleeve
Do not use a solderless
terminal when
a single wire is used.
If used it causes
abnormal heating at
the caulking portion
of the terminal.
If a single wire is used
connect the
wire direct as shown
in the figure.
(attachment).
220-240V~ 50Hz
27.3
220V~ 60Hz
16.2
380-415V 3N ~ 50Hz
380V 3N~ 60Hz
Communication line(5V)
Power supply line
Rear Cover
Incorrect
Earth
Wire
Power Supply
Cable
Earth Wire
Control Cable
Fig. 6.3 Wiring Connection of Outdoor Unit
Communication
Line
0.75
0.75
Earth line
3N~ Outdoor Unit Connect Wire
Wiring Method with Clamp
1. Insert the wires by into the
cord clamp and clamp them
as shown in the figure.
2. Perform wiring so that wires
do not touch the compressor,
refrigerant pipes or edge of
the covers.
Make a loop of the wires so that disconnecting
the wirings for replacing parts is not required.
CAUTION:
When using conduit, do NOT lead it in the outdoor
unit. If the conduit wiring touches the compressor
and refrigerant cycle in the outdoor unit, it may
cause to damage them.
Rubber Bush
(Accessory)
22
Sensitive
Current
40 30
25
30
Piping Cover
Conduit
Power Supply Cable
50
25